Hmmm.... That's a good idea. I don't have concrete questions, but I have some brainstorming topics, I guess... It's all slowly coming to me, haha.
How about some clarification on how the branching timelines affects 999's plot. I know 999 had a whole stable time loop... paradox... thing... going on, but VLR kind makes it seem like all the other paths are their own timelines, while 999 made it seem like they were only possible futures being observed by a young Akane.
By extension: does this make the ability to "jump" available to all ESPers? If not, what makes Sigma, Phi, and Kyle (or ???) so special?
Isn't there already another timeline where Radical-6 isn't released? Why are Akane and Sigma trying so hard to create a future where the world is safe from Radical-6, if there should already be a timeline like that. (I'm assuming timelines split at any major event, creating an infinite number of timelines.)
So If/when they do manage to create the ideal timeline at point "E", the timeline where they failed will also still exist. Doesn't that make everything they're doing pointless? Or is there more to the overall plan that involves the method of transporting a body through time?
I'm sure there are answers to these already, but I've come up with them so far to share here. Maybe this way we can spot check and make sure we have some great questions to ask!
Would it be fair to ask if everything's been planned since before 999 came out?
I don't think it was. Uchikoshi said he had no plans for a sequel at the time of 999... But it wouldn't hurt to ask, actually... Dude probably has a ton of tricks up his sleeves.